Factors influencing prognosis after neo-adjuvant chemoradiation therapy for rectal carcinoma

Acta chirurgica Belgica
M MoralA Suárez

Abstract

Neo-adjuvant chemoradiation therapy (CRTx) has become a standard therapeutic regimen for rectal carcinoma. This therapeutic option allows more sphincter preserving surgical procedures and seems to improve prognosis in patients with rectal carcinoma. The aim of this study is to analyse factors influencing prognosis in terms of disease free survival (DFS) and overall survival (OS) after CRTx. We have reviewed the clinical and morphological data of 39 patients after neo-adjuvant chemoradiation therapy, including immunohistochemistry for p53, cyclin D1, MIB-1 (Ki67) and bcl-2 protein in paraffin-embedded tissue. In our series, 12 patients did not respond to neo-adjuvant therapy, 12 showed a complete response and 15 a partial response. When we analysed the factors influencing DFS we found a significant influence of neural, vascular and lymphatic invasion, pre-operative and postoperative CEA, TNM staging, smoking and histological response to CRXT in the univariate analysis. As for OS, we found a significant influence of TNM staging, histological grade, peritumoral inflammatory reaction and vascular and neural invasion. No multivariate analysis was performed due to the small sample size. In our series of patients with rectal carcinoma...Continue Reading

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.